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Finding the Fourth Proportional to 579,682.60, 869,232.30 and 343,097.80

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Solution

The fourth proportional to 579,682.60, 869,232.30 and 343,097.80 is: 514,474.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,682.60 : 869,232.30 = 343,097.80 : x
  2. Step 2: Convert to fraction form
    579,682.60/869,232.30 = 343,097.80/x
  3. Step 3: Cross multiply
    579,682.60x = 869,232.30 × 343,097.80
  4. Step 4: Simplify right side
    579,682.60x = 298,231,689,818.94
  5. Step 5: Solve for x
    x = 298,231,689,818.94/579,682.60
  6. Step 6: Final answer
    x = 514,474.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.